GB/T 28248-2012
Cemented carbide drills for printed boards (English Version)
- Standard No.
- GB/T 28248-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 28248-2012
- Scope
- This standard specifies the terms and definitions, dimensions, technical requirements, inspection, packaging, storage, and transportation of cemented carbide drill bits with a diameter of 0.05 mm to 6.5 mm (hereinafter referred to as drill bits) for processing printed boards.
GB/T 28248-2012 Referenced Document
- GB/T 4340.4-2009 Metallic materials.Vickers hardness test.Part 4:Tables of hardness values
- YB/T 5349-2006 Test methods for bending mechanical properties of metals
GB/T 28248-2012 history
- 2012 GB/T 28248-2012 Cemented carbide drills for printed boards
